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Q & A ... °Ô½ÃÆÇ  (Optimization)


¡Ø ¾È³çÇϽʴϱî..?
    ÀúÈñ KSTECÀÇ Á¦Ç°À̳ª ¼­ºñ½º¿¡ ´ëÇØ ±Ã±ÝÇϽŠÁ¡À̳ª ±â¼úÁö¿øÀ» ¿øÇϽô °í°´´ÔÀº ȸ»ç¸í,
    ºÎ¼­¸í, ¼º¸í, »ç¿ëÁ¦Ç°¸í, Á¦Ç° VERSIONÀ» ¸í½ÃÇÏ¿© Áֽñ⠹ٶø´Ï´Ù.

¡Ø °Ô½ÃÇϽг»¿ë¿¡ ´ëÇØ¼­´Â ½Å¼ÓÇÏ°Ô ´äº¯ÇØ µå¸®°Ú½À´Ï´Ù.
¡Ø ÇØ´çµÇ´Â Á¦Ç°±ºÀ» ¼±ÅÃÇϽŠÈÄ ÇÏ°í ½ÍÀ¸½Å ¸»¾¸À» Àû¾î ÁֽʽÿÀ.

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Numeric difficulties¸¦ ÂüÁ¶Çϼ¼¿ä
ÀÛ¼ºÀÚ
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2009-06-10
Á¶È¸¼ö 1341 È¸
÷ºÎÆÄÀÏ Ã·ºÎµÈ ÆÄÀϾøÀ½.
¼ö¸®¸ðÇüÀÇ °è¼ö¿¡ ÀÇÇÑ ¿µÇâÀ¸·Î "Numeric difficulties"°¡ ¹ß»ýÇÑ °æ¿ìÀÏ ¼ö ÀÖ½À´Ï´Ù.
CPLEX ¸Þ´º¾ó¿¡¼­ Numeric difficulties¸¦ °Ë»öÇØ¼­ ÂüÁ¶ÇϽñ⠹ٶø´Ï´Ù.
< LP ÆÄÀÏÀ» ¿Ã·Á Áֽøé Å×½ºÆ® ÇØº¸°Ú½À´Ï´Ù>
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2¹øÂ° Áú¹®Àº CPLEX ¿¹Á¦¸¦ º¸½Ã¸é ´Ù¾çÇÏ°Ô ÀÖ½À´Ï´Ù.
¾Æ·¡ ¿¹Á¦´Â "ilolpex3.cpp"ÀÇ ÀϺΠÀÔ´Ï´Ù.
IloNumVarArray x(env, 8, 0.0, 50.0) ¿¡¼­ "8"ÀÌ »ý¼ºÇÒ º¯¼öÀÇ °¹¼öÀÔ´Ï´Ù.
Á¶°Ç¿¡ µû¶ó¼­ ¿øÇÏ´Â ¸¸Å­ÀÇ º¯¼ö »ý¼ºÀ» ÇÏ¸é µË´Ï´Ù.
---------------------------------------------------------
IloNumVarArray x(env, 8, 0.0, 50.0);
model.add(IloMinimize(env,-9*x[0] + x[1] + 4*x[2] + 2*x[3] -8*x[4] + 2*x[5] + 8*x[6] + 12*x[7]));
model.add(-x[0] + x[2] + x[4] == -3);
°ü·Ã±Û º¸±â
"Numeric difficulties¸¦ ÂüÁ¶Çϼ¼¿ä"¿Í(°ú) °ü·ÃµÈ ±ÛÀÌ  4°Ç ÀÖ½À´Ï´Ù.
Á¤¼ö·Î ¶³¾îÁö°Ô ¾ÈµÇ³ª¿ä? ¾ÈÇü´ë 2009-06-10
Numeric difficulties¸¦ ÂüÁ¶Çϼ¼¿ä À¯È¯ÁÖ 2009-06-10
   [RE]Numeric difficulties¸¦ ÂüÁ¶Çϼ¼¿ä ¾ÈÇü´ë 2009-06-11
    MIP tolerance (EpGap)À» Á¶Á¤ÇØ º¸½ÉÀÌ.. À¯È¯ÁÖ 2009-06-12
     --> À§ÀÇ ´äº¯ ¼öÁ¤ À¯È¯ÁÖ 2009-06-13